The MeOH extract of Narcissus pallidulus afforded a novel compound, roserine [1]. The structure of 1 was elucidated by spectroscopic methods, including 2D nmr analyses.In a previous work on the alkaloid composition of Narcissus pallidulus Graells we reported the isolation and structure elucidation of mesembrenone [2] (2), an unexpected alkaloid in the family Amaryllidaceae. This was unusual because mesembrine-type alkaloids were thought to be restricted to Aizoaceae-Mesembryanthemoideae (Dicotyledoneae) (3). We now describe the characterization from this plant of another alkaloid, for which the name roserine [1] is proposed.